<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
	<h1>this is html</h1>
	index.....
	<a href = "logout">logout</a><!-- 此类输出效果为index..... logout 其中logout为文本点击类型-->
</body>
</html>